JPH02169925A - Foldable leg type foot warmer - Google Patents

Abstract

PURPOSE:To protect human fingers from being caught and feet from being injured when a supporting leg is folded or spread by fixing a leg fitting bracket inside a fixed leg fixed on the side of a frame body, fixing a leg fixing bracket inside a supporting leg, pivotally supporting the leg fitting bracket and the leg fixing bracket, and providing a curved surface wall in the insertion part of the supporting leg. CONSTITUTION:The product mentioned in the title has a frame body 1 made by combining multiple frame woods 2 in the shape of a frame through corner brackets 3, and each of leg bodies 4 comprises a fixed leg 4a fixed to the corner fitting 3 and made in the form of hollow having an opened lower end, and a supporting leg 4b whose insertion part 28 provided at the upper part can be inserted into the fixed leg or removed through the opened lower end and which is foldably provided through a shaft 48. And, a leg fitting bracket 14 is fixed in the fixed leg 4a and a leg fixing bracket 43 is fixed in the supporting leg 4b. Since the respective brackets are rotatably supported, human fingers are protected from being caught when the supporting leg 4b is folded or spread. Also, since a curved surface wall 32 is provided at the insertion part of the supporting leg 4b, the leg fixing bracket 43 is covered by the curved surface wall 32 as well as an acute angle part is eliminated after the leg is folded, and human feet are not injured even if they hit the leg.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a foldable leg kotatsu whose legs are foldable.

(b) Conventional technology Traditionally, the leg folding mechanism of a kotatsu was developed in the 1970s.
As shown in Japanese Patent No. 779, it consists of a fixing member fixed to the kotatsu tower frame side and a leg mounting member rotatably supported on the fixing member by a support shaft. However, since the fixing member and the leg attaching member are exposed, there is a risk that fingers may be pinched by the fixing member or the leg attaching member when folding or standing up. In addition, as mentioned above, since the folding mechanism is exposed, the kotatsu gets caught on the spindle and breaks, and the appearance is unsightly, making it unsuitable for so-called furniture-style kotatsu made of high-quality wood.

(C) Problems to be Solved by the Invention The present invention aims at fixing the leg mounting fittings and the leg fixing fittings constituting the folding mechanism within hollow fixed legs and support legs, thereby preventing fingers from being caught. prevent.

(d) Means for Solving the Problems The present invention provides a frame in which a plurality of frames are combined into a frame shape through corner fittings, and a frame in which the frame is fixed to the corner portions of the frame. The leg body includes a hollow fixed leg that is fixed to the corner fitting and has an opening on the lower surface, and a hollow fixed leg that has an insertion section provided at the upper part that can be inserted into and removed from the lower opening into the fixed leg and folded freely via a shaft. A leg mounting bracket is fixed within the fixed leg, and the leg mounting bracket and the leg fixing bracket are pivotally supported.

(e) Since the working leg attachment fittings are fixed within the fixed leg, and the leg fixing fittings are fixed within the supporting legs, and the respective fittings are pivotally supported, fingers will not be caught when the supporting legs are folded or erected. In addition, since a curved wall is provided at the insertion part of the support leg, the leg fixing bracket is covered by the curved wall even when the support leg is folded, and there is no sharp corner after folding, so the foot will not hit the hot water. .

(f) Example Embodiments of the present invention will be described based on the drawings.

(1) is made up of multiple (4) frames (2) (2) (2) (2)
) are combined into a frame shape through corner fittings (3),
Legs (4) (4) (4) (4) are attached to the corners. A crosspiece (5) is suspended from the frame (1), and a heater unit (6) for heating is disposed approximately at the center.

This heater unit (6) has a power supply cord (7
) is being attached and detached. Further, a kotatsu futon (K) or a table board (T) is placed on the upper surfaces of the frame (1) and the legs (4). Both sides of the corner fitting (3) form insert pieces (3a) (3a) that engage with the grooves (2a) of the frame (2) (2) and are fixed with screws (8), and Long collar pieces (3b) (3b) are formed, and a pair of insertion holes (3c) (3c) are bored in the lower collar piece (3b), as well as a screw hole (3d) approximately in the center. It is drilled.

The leg body (4) is composed of a hollow fixed leg (4a) with an opening on the lower surface, and a support shaft (4b) rotatably supported on the lower surface of the fixed leg (4a). The fixed leg (4a)
is a pair of step portions (10) (1) on which the flange piece (3b) is placed.
0), a notch (11) formed between the stepped portions (10) (lo), and a rectangular long hole (1) formed on the top surface.
2), and an insertion hole (13) opposite to the screw hole (3d).
). (14) is a leg mounting bracket fixed to the inner wall of the fixed leg (4a), which has a thick threaded hole (14a) facing the insertion hole (13) approximately in the center; The wall has an insertion piece (14b) that is inserted into and engaged with the insertion groove (15) formed on the inner wall of the fixed leg (4a).
) (14b), and a pair of engaging pieces (
14d ) (14d 'I is bent downward, and a placing piece (14e) is provided at the lower part of the cutout (11) to place the flange piece (3b) of the corner fitting (3). is forming.

A pair of opposing mounting pieces (14f) (14f) are formed on both sides of the mounting piece (14e), and a shaft hole (14g) is formed therein. The engagement claw (
14h) (14h) is formed. (18) is a long hole (
12), which is a locking projection (21) that locks into a recessed shaft support (20) formed at the opening edge of the elongated hole (12) at the rear end of both sides of the lower part. )(21)
, a projection piece (22) for preventing removal from the elongated hole (12), and a pressing piece (22) formed at the front end of the lower part.
3) respectively. The lock release operation button (1
8) The upper surface of the fixed leg (4) should be lower than the opening of the elongated hole (12), and should not protrude as a whole.
It is designed to be slightly lower than the top surface of a). (25)
is a resilient leaf spring, which is fixed from the lower surface of the front recorder (18) to the upper inner surface of the fixed leg (4a) with a screw (26), so as to keep the button (]8) in a horizontal position at all times. There is.

The support leg (4b) is hollow and the fixed leg (4a)
A hollow first insertion part (28) which is rotatably inserted into and removed from the lower opening inside the body, and a long leg part (2) which becomes a leg.
9). An elongated hole notch (30) is opened from the upper surface of the first insertion portion (28) to the front side wall, and insertion holes (31) (31) are formed on both sides of the first insertion portion (28) and are opposed to the insertion holes. It forms a rear curved wall (32). (33) is a second insertion portion inserted into the first insertion portion (28), which forms a curved wall (34) that is approximately similar to the curved wall (32), and has screws (35) ( 35) through the screw holes (41) (41) of the first insertion part (28) and the screw holes (37) (37) of the second insertion part (33).

This second insertion portion (33) has a pair of vertical guide pieces (33a) (33a) and this guide piece (33a).
) (33a), and an engagement pin (40) is formed at the bottom of this guide space (34).
) is installed protrudingly. (36) is a lid that covers the lower surface of the leg (29).

(43) is a leg fixing metal fitting that is housed in the first insertion part (28) and fixed between it and the second insertion part (33). ) and the guide piece (33a).
) (33a) The bent piece (45) (
45), first projecting pieces (46) (46) that engage with the opening edge of the elongated hole notch (30), and this first projecting piece (46) (
A second projecting piece (47) (46) is bent in the opposite direction to (46).
7). The mounting piece (14) is attached to the fixing piece (44) via a long sleeve (48) and a screw (49).
f) (14f') shaft hole (50) (50
) is installed.

(51) is the leg fixing metal fitting (43) and the guide space (3).
4), which is a lock fitting disposed vertically movably between Second projecting piece (4
7) A retaining protrusion (53) that is engaged with the lower end of (47) to prevent it from being pulled out vertically, and a spring retaining piece (53).
4). The engaging pieces (14d) (14d) of the leg mounting bracket (14) are attached to the locking bent piece (51a).
Engagement notches (60) (60) that are engaged with 'I are formed. The spring locking piece (54) and the engagement pin (4
A spring (61) that constantly biases the lock fitting (51) upward is stretched between the lock fitting (51) and the lock fitting (51). (63) connects the fixed leg (4a) to the corner bracket (3) via the leg mounting bracket (14).
This is a bolt for fixing it to the As shown in FIG.
) are engaged with the engagement notches (60) (60), and release by folding is performed by pressing the button (18) from above and pressing the locking metal fitting (51) downward with the pressing piece (23). This is performed by disengaging the engagement pieces (14d) and the engagement notches (60) (60).

Since the upper part of the support leg (4b) is inserted and engaged with the fixed leg (4a), the degree of reinforcement is improved at the insertion part,
In addition, the engagement piece (14d) between the support leg (4b) and the fixed leg (4a)
) is configured to be locked and released from the upper surface of the support leg (4b), so that the user will not accidentally touch the lock part and release the lock during normal use.

In other words, this part is the table board (T) or the kotatsu futon (
This is because it is covered by K).

When the support leg (4b) is folded, the curved wall (32) rotates along the rear inner wall of the fixed part (4a) as shown in Figure 3, and in the folded state, the curved wall (32) rotates as shown in Figure 4. faces the side to prevent tatami mats and futons from getting caught.

(G) Effects of the Invention As described above, the present invention fixes the leg mounting bracket in the fixed leg fixed to the frame side, fixes the leg fixing bracket in the support leg, and connects the leg mounting bracket and the leg fixing bracket. Since each metal fitting is supported by a fixed leg and a supporting leg, there is no risk of fingers being caught between the leg mounting metal fitting and the leg fixing metal fitting when the supporting leg is folded or raised. In addition, it has a clean appearance, making it ideal for so-called furniture-like kotatsu, and there is no risk of scratches as the feet do not come into contact with the folding mechanism. Furthermore, because the leg fixing bracket is fixed to the insertion part of the support leg and the side wall facing the axis of the insertion part is a curved wall, even if the support leg is folded with a finger touching the curved wall by mistake, there will be no scratches. In addition, in the folded state, tatami mats and futons are not caught on the curved wall.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the kotatsu of the present invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, Fig. 3 is an explanatory diagram of the operation during folding of the legs, and Fig. 4 is when the legs are folded down. Fig. 5 is a cross-sectional view of Fig. 2, Fig. 6 is an exploded perspective view of the main part, Fig. 7 is a sectional view of the main part when using the table board, and Fig. 8 is the cross-sectional view of the main part when using the table board. Cross-sectional view of main parts when using a kotatsu futon, No. 9
The figure is a sectional view of the main part when the lock fitting is lowered by pressing the operation button and the engagement between the engagement piece and the engagement notch is released. (1) Frame, (2) (2) (2) (2) Frame, (3) Corner fitting, (4) Leg, (4a)
...Fixed leg, (4b)...Support leg, (14)...Leg mounting bracket, (28)...Insertion section (first insertion section, (32)...Curved wall, (43)... )...Leg fixing bracket,...Shaft (long shaft).

Claims (2)

[Claims] (1) In a frame body in which a plurality of frames are combined into a frame shape through corner fittings, and legs are fixed to the corner parts of this frame body, the legs are fixed to the corner fittings. It consists of a hollow fixed leg with an opening on the lower surface, and a hollow supporting leg with an insertion part provided at the upper part that can be inserted into and removed from the lower opening into the fixed leg and folded freely via a shaft. A folding leg kotatsu, characterized in that a leg mounting bracket is fixed to the support leg, the leg fixing bracket is fixed inside the supporting leg, and the leg mounting bracket and the leg fixing bracket are pivotally supported. (2) The leg folding type kotatsu according to claim 1, wherein the leg fixing metal fitting is fixed to the insertion part of the support leg, and the side wall facing the axis of the insertion part is a curved wall. .